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Finding the Fourth Proportional to 360,020.63, 496,818.84 and 198,872.21

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Solution

The fourth proportional to 360,020.63, 496,818.84 and 198,872.21 is: 274,438.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,020.63 : 496,818.84 = 198,872.21 : x
  2. Step 2: Convert to fraction form
    360,020.63/496,818.84 = 198,872.21/x
  3. Step 3: Cross multiply
    360,020.63x = 496,818.84 × 198,872.21
  4. Step 4: Simplify right side
    360,020.63x = 98,803,460,680.44
  5. Step 5: Solve for x
    x = 98,803,460,680.44/360,020.63
  6. Step 6: Final answer
    x = 274,438.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.